Polo Rules

My only concern (with my organisers hat on), that not stopping time is more predictable for the schedule, and would encourage less longs break in play (IMO), with time stopped there would be no motivation not to have long breaks (I'd like to keep the game moving, not lots of lame timeouts).

Don't get really get it. It shouldn't be hard to figure out (as an organiser) how long games take on average. I agree that long breaks in play are not desirable, but if you're allowing unlimited subs, all that extra milling about is bound to waste some time (unless you just leave your strongest players on all the time).